6EW6 GRAY PLATE
  • 6EW6 GRAY PLATE
  • 6EW6 GRAY PLATE
National

6EW6 GRAY PLATE

7.00 USD

 Fine miniature glass amplifier tubes manufactured in Japan by National. These 7 pin pentodes, with high mutual conductance, are designed for IF amplifier service in television receivers. They come with gray plates, 4 thick copper posts, and top halo getters. They are printed in red with National logo, NATIONAL 6EW6 MADE IN JAPAN 104A 33781. Boxes are standard white, NATO coded 5960008894246 with bar code, under contact DLA900-85-M-FE41. They are also printed 1 EA FSCM 83781 A 8/85 (indicating 1985 production) NATIONAL ELECT DIV RICHARDSON ELECT LTD.

Condition

Tube Matching
Tube Matching
6.00 USD by tube

WHY ?

A tube may have one, two, or three internal sections depending on the purpose of the tube; somtimes these sections are all the same, sometimes they are different. Due to manufacturing and material tolerances, there may be slight differences between the original specification and the actual tube. Tube matching tests each one of these internal sections and selects tubes, compared to original specifications at manufacture, for balanced performance and good sound.

HOW ?

All our tubes are tested by us prior to packing on our Stark, AVO, Simpson or RF Laboratories Inc. calibrated testers. On request for tube matching, tubes are matched for Mutual Conductance in Micromhos and Plate Current in Milliamps on our Amplitrex or Radioelec Duovac testers, with results printed for each  individual tube. Certain tubes difficult to test are matched for Mutual Conductance in Micromhos only on one of our regular calibrated testers. On request we can also test for Microphonics.
Quantity

National
100 Items

Data sheet

Base
7 pin miniature B7G
Boite type
1/1
Emplacement
39
Quide
3615
Fonction
Pentode
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